He also took the quintessential visitor's pic standing in front of that big ole mansion at 1600 Pennsylvania Avenue.

In another shot, he pretended to scale the White House fence. While we're sure Barack and Michelle Obama would be happy for him to drop by sometime, it's probably a good thing he was only pretending. The real Secret Service agents most likely wouldn't find it funny if their big-screen counterpart broke the rules on their home turf.

Then again, who could ever turn Channing away?!

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For more on Channing, his trip to D.C. and his role in White House Down, tune in to E! News Monday at 7 p.m. and 11:30 p.m.